Power tool



July 22, 1969 w. F. TAYLOR 3,456,699

POWER TOOL Filed July 26, 1967 3 Sheets-Sheet 1 6F e2. INVENTOR.

WILLIAM E TAYLOR ATTORNEYS July 22, 1969 w. F. TAYLOR POWER TOOL Filed July 26, 1967 5 Sheets-Sheet 2 j g-J- INVENTOR.

WILLIAM F. TAYLOR ATTORNEY? July 22, 1969 w. F. TAYLOR 3,456,699

POWER TOOL Filed July 26, 1967 3 Sheets-Sheet. 5

INVENTOR. WILLIAM F. TAYLOR BY filial Y W rp ATTORNEYS 3,456,699 POWER TOOL William F. Taylor, 1920 S. Yorktown, Tulsa, Okla. 74104 Filed July 26, 1967, Ser. No. 656,265 Int. Cl. B27c 9/02 US. Cl. 1441 13 Claims ABSTRACT OF THE DISCLOSURE A multipurpose power tool is described in which the basic component of the power tool is a single supporting tube operating slidably in a support member hingedly connected adjacent one edge of the upper portion of a frame. Adjacent a second edge of the frame the tube rests bearably in a supporting clamp. A power head is rotatively connected to one end of the tube, and a counterbalancing weight is positioned at the other end of the tube. The tube is clampable in both the horizontal and vertical positions. Reference marks are provided on the tube, power head and attachable tool means by which these components may be precisely aligned. Attachable tool means include a tilting arbor saw, a lathe, a grinder, a. drill press, a belt sander, a disc sander, a shaper, a jointer, and variations of these tools.

BACKGROUND OF THE INVENTION Material working machines designed for multiple use are known in the prior art. For example, US. 2,623,269 and US. 2,905,211 disclose machines designed for multiple use. However, previous multiple-use devices do not have the easy and simple adaptability to multiple use operation as the device of this invention. The prior art machines are limited in their maneuverability by being constructed on a pair of parallel ways, whereas the design of the present device of this invention permits the use of a single way. Also, the use of a single way enhances the adaptability of the instance device over those of the prior art. The prior art machines are unbalanced and thus become difficult to maneuver and cumbersome to operate. This is overcome in the present device by careful balancing and proper hinging in relation to the supporting frame.

BRIEF SUMMARY OF THE INVENTION This invention relates to new and useful improvements in machines for working wood and other materials, and more particularly to multipurpose power tools capable of being used in diverse material working operations.

The primary object of this invention is to provide a machine for working wood and other materials which is simple and easy to operate, of rugged construction, and readily convertible to perform a multiplicity of working operations.

Another object of this invention is to provide a material working machine which is adaptable to receive, in operating position, various tool components.

Still another object of this invention is to provide an improved material working machine which has a headstock which is adjustable in more than one plane so that the headstock may be positioned at the most suitable location depending upon the operation to be performed.

These and many other objects and advantages of the invention will become apparent from the following description and claims and from the accompanying drawings, wherein:

FIGURE 1 is a perspective view of a material working machine according to the invention arranged as a power saw.

FIGURE 2 is a perspective view of a material working machine according to the invention arranged as a power lathe.

FIGURE 3 is a perspective view of a material working machine according to the invention arranged as a power plane.

FIGURE 4 is a fragmentary perspective view of a material working machine according to this invention arranged as a drill press.

FIGURE 5 is a fragmentary perspective view of a shaper tool in a device similar to that of FIGURE 3.

FIGURE 6 is a fragmentary perspective view of a material working machine according to this invention arranged as a grinder.

FIGURE 6A is a sectional view along the lines 6A6A of FIGURE 6.

FIGURE 7 is a fragmentary perspective view of a material working machine according to this invention arranged as a belt sander.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings in details, FIGURE 1 describes one embodiment of the device in use as a tilting arbor saw, and includes a support frame 10 to which is attached hingedly adjacent one edge of a first support member 12. Support member 12 is shown as being hingedly connected to frame 10 by the positioning of axle 14 through a bearing (not shown) in bracket 16. Axle 14 is threaded on each end and is held in bracket 16 by a machine nut 18. Support member 12 has a concave portion 20 of curvature closely proximating the outer peripheral curvature of tubular way 22. Support member 12 has connected thereto a closure member 24 also having a concave portion 26 also proximating curva ture of tube 22 so that tube 22 can be held clampably and slidably between concave portions 20 and 26. At one end closure member 24 is hingedly connected to upstanding leg 28 of bracket 12, and at the other end, closure member 24 can be lockably connected to upstanding leg 30 by operation of locking bolt 32. Thus, with this arrangement, tube member 22 may be slidably positioned in bracket 12 to any desired degree of tension, or may be removed from its position in bracket 12. At a position adjacent the opposite edge of frame 10, tube 22 rests bearably on roller 34 rotatively positioned in a second support member 36. Second support member 36 also includes a clamp portion, shown in FIGURE 1 as a machine bolt 38 cooperating with internal threads in upstanding leg 40 to bear against the outer surface of tube 22. Machine bolt 38 is adjusted by rotation of handle 42 which provides an adjustable torque to bolt 38 by being positioned in adjustable sleeve 44 in a manner that the effective length of handle 42 may be varied as desired. With this arrangement of support members 12 and 36, tube 22 may be held securely in a horizontal position, or may be released from its secure position to be moved slidably between support members 12 and 36, or may be raised to a vertical position by movement of bracket 12 with the subsequently lower end of tube 22 resting in a clamp at the lower portion of frame 10. Thus, a lug 46 as shown at the end of tube 22 in FIG- URE 1 rests in a latch 48 as shown in FIGURE 4. Tube 22 is released from latch 48 by the depressing of lever 50 which raises tube 22 from its snug position in latch 48 a sufiicient distance that tube 22 may be swung upward on support member 12 to a horizontal position across frame 10.

FIGURE 1 further shows a headstock, generally 52, mounted slidably on tube 22. Headstock 52 can be securely positioned on tube 22 by the tightening of clamp 54 through action of lever 56. Headstock 52 includes a protective cover 58 which keeps dust and other foreign matter from the electric motor and precision gears located in the headstock. The electric motor, which provides the power for the power tools and which is connectable to a source of electric power through cable 59 and plug 59A, is not shown, but in FIGURE 4 a shaft 60 which protrudes from the motor is shown and also is shown to have secured thereon a stepped pulley 62 by means of which power is transmitted through belt 64 to a stepped pulley 66 which is secured to a spindle 68 within the cover and to which various chucks, pulleys, or other drive components are attached to further receive the various power tools. For example, in FIGURE 2, a chuck 70 holding a pointed lathe pin 72 is mounted on the headstock spindle shaft 68. In FIGURE 1 a power transmitting chuck 74 is attached to the spindle shaft 68 to transmit power from the spindle shaft through a flexible cable drive 76 to a circular saw blade 78 held bearably in sleeve 80. Sleeve 80 is attached to rods 82 and 84 which are received respectively in sleeve 86 and slot 88. Movement of rods 82 and 84 in sleeve 86 and slot 88 permit vertical positioning of saw blade 78. The end of rod 82 which fits slidably in sleeve 86 is held in securable adjustment by machine bolt 90. The other end of rod 82 adjoining sleeve 80 fits into a bearing (not shown) in sleeve 80 so that sleeve 80 may rotate in relation to rod 82. The front end of rod 84 fits through slot 88 and is held in chosen rotative position by machine bolt 92. The cooperation of these components permits both vertical and angular adjustment of saw blade 78, and angular adjustment is precisely indicated by pointer 94 secured to rod 84 in relation to angular dial 96. Pointer 94 may be locked against dial 96 by means of screw 95. Saw blade 78 is positioned through slot 98 in saw table 100 with sufiicient room in slot 98 to permit saw blade 78 to be angularly positioned through a wide angle, preferably an angle of at least 45 degrees. Saw table 100 is secured to front support 102 and rear support 104 which may either rest unattached on frame or may be secured to frame 10 by conventional means. Saw table 100 is further connected to member 106 which in turn is hingedly connected to member 108 secured to frame 10. Thus, saw table 100 may be quickly removed from use on frame 10 to a remote position out of the way and equally brought into position for use. FIGURE 1 also describes a vise member 110 removably positioned on tube 22 as a counterbalance. This use as a counterbalance makes the conversion of tube 22 from a horizontal position to a vertical easy and effortless. When saw table 100 is out of the way, closure member 24 may be loosened and tube 22 slid to a position where the weight of counterbalanc ing vise 110 will approximate the weight of the headstock, and tube 22 very easily rotated with bracket 12. By a slight modification of this embodiment, saw blade 78 may be replaced by a disc sander component.

FIGURE 2 describes the use of the invention as a lathe. Tailstock 112 is clampably secured to tube 22 by clamp 114 which is tightened by threaded handle member 116. Tailstock 112 includes a bearably mounted lathe pin 118 which is in the same radius from the center of tube 22 as lathe 72 on the headstock. One important feature of this invention then is the manner in which lathe pins 72 and 118 are put in axial alignment. Headstock 52 includes at least one reference mark 120 (FIGURE 4) thereon, preferably a fine reference line drawn on clamp 54. Also, tube 22 includes at least one reference mark 122 along its length which then can be aligned with reference mark 120. It is also contemplated that these reference marks may be plural in number and further that they may be numbered to permit angular adjustment of not only headstock 52 and lathe pins 72 and 118 but other tool components. A tool rest 124 is clampably secured to tube 22 for the support of tools used in the operation of the lathe.

FIGURE 3 describes the machine tool of this invention assembled for use as a planer. A planer table 126 is clampably secured to tube 22 by an underneath clamp (not shown) similar to clamp 114 of FIGURE 2, in a manner that table 126, which includes leg rest 128, rests firmly on frame 10. Then, in operation, pulley 130 on shaft 132, driving planer blade 134, is driven by means of belt 136 by pulley 138 removably attached to headstock spindle shaft 68. Stepped pulleys may be used if desired in place of pulleys 132 and 138. A similar tool may be the shaper shown in FIGURE 5, in which a shaper table 127 and shaper blade are shown.

FIGURE 4 describes the machine tool arranged for use as a vertical drill press. Tube 22 has been positioned vertically as described above, and a drill chuck 140 as been screwed onto headstock spindle shaft 68. A work table 142 rests on support 144 which in turn is secured to clamp 146. Clamp 146 is adjustable by means of threaded handle 148 which has external threads coopcrating with internal threads of the clamp. Thus, work table 142 is adjustable vertically and horizontally. Support 144 includes a reference mark 150 which permits accurate alignment of table 142 with hedastock 52. It is also contemplated that support 144 may also include means by which table 142 may be made pivotal so that angular drilling may be accomplished. Means for measurement of linear and angular positions may be included in the headstock, tube 22, and table 142 so that precise adjustment of these components may be accomplished. The drill press components may also be arranged as a horizontal drill press. Headstock 52 includes internal gearing (not shown) which is operable by means of crank 151 to provide for longitudinal movement of headstock 52.

FIGURES 6 and 6A describe the machine tool of this invention arranged as a grinder. A clamping member 152 is positioned on tube 22, and is adjusted by a threaded handle 154 which has a series of external threads en gaging internal threads in clamp 152 to adjustably and releasably clamp this member to tube 22. Several methods of arranging the clamping operation are applicable, both for clamp 152 and for similar clamps 114, 126, and 56. That is, the threaded handle may threadedly engage internal threads on the remote side of the clamp, for example, rear portion 156 in FIGURE 6A so that portion 156 is drawn toward front portion 158, or the threaded handle may penetrate both portions by having a lug on the end extending beyond 156 and may engage threads within portion 158 so that in effect portion 158 is forced toward portion 156. Other equivalent clamping means are contemplated. Removably securable to clamp 152 is support 160 held in place by threaded bolt 162 and nut 164. Adjacent the front edge of support 160 is clamp 166 having therein a recess 168 which receives projection 170 held securably by threaded handle 172. Secured to projection 170 is a cover 174 which can be fitted over grinding wheel 176 by slidable movement of clamp 152 along tube 22 to a suitable position. Cover 174 has an open portion to permit access of the work material and a work rest 178 formed on one edge.

FIGURE 7 describes the machine tool of this invention arranged as a belt sander. Suitable clamping means (not shown) clamp table 180 to tube 22 and to leg rest 128. Bearably mounted on table 180 are rollers 182 and 184. Shaft 186 on which roller 182 is mounted extends outward to form a mount for pulley 188. Pulley 188 is then driven by means of belt 136 and pulley 138 by headstock 52. Pulley 188 may be a stepped pulley as may pulley 138.

Since many different embodiments may be devised without departing from the spirit and scope of this invention, the specific embodiments disclosed herein are not to be taken in a limiting sense, since the scope of the invention should be determined only by the claims.

I claim:

1. A power tool comprising:

a frame,

a first support member hingedly connectable to said frame,

a second support member spacedly positioned on said frame from said first support member, and including a clamp member and a roller member,

a tube member slidably positioned in said first support member and clampably positionable in said clamp member in a manner to contact said roller member in a first position and removable from said clamp member in a second position, said first position of the tube member being a horizontal position and said second position being a vertical position, said tube member being rotatable in said first and second support members when said clamp member is loosened, and said tube member including a first reference mark thereon,

a counterbalanced power head positionable at a first end of said tube member, said power head being connected to a source of electric power, and

tool means positionable on said tube member, said tool means having a component thereof drivable by said power head.

2. A power tool as described in claim 1 wherein:

a second end of said tube member remote from said power head is lockably positionable in a vertical position in a lower clamp member.

3. A power tool as described in claim 2 wherein said lower clamp member is positioned at a lower portion of said 'frame.

4. A power tool as described in claim 2 wherein said tool means includes tilting arbor saw means hingedly connected to said frame, said saw means having a saw blade connectable to said power head by means of a flexible drive cable.

5. A power tool as described in claim 4 wherein said saw means is connected to said frame adjacent one edge thereof, said saw means is swingable to a position below said edge when in an inoperative position and positionable transversely over and across said tube member when in an operative position.

6. A power tool as described in claim 2 wherein said tool means includes a lathe component clampably mountable on said tube member, said lathe component having as a part thereof a clamp member having thereon a reference mark alignable with said reference mark of said tube member, and said power head has thereon a reference mark alignable with said reference mark of said tube member.

7. A power tool as described in claim 2 wherein said tool means includes tilting arbor abrasive means hingedly connected to said frame, said abrasive means having a disc-like abrasive blade connectable to said power head by means of a flexible drive cable.

8. A power tool as described in claim 7 wherein said abrasive means is connected to said frame adjacent one edge thereof, said abrasive means is swingable to a position below said edge when in an inoperative position and positionable transversely over and across said tube memher when in an operative position.

9. A power tool as described in claim 2 wherein said tool means includes table means clampably mountable on said tube member, said table means having bearably mounted therein a planer member, said planer indirectly connected to said power head.

10. A power tool as described in claim 2 wherein said tool means includes a grinder clampably mountable on said tube member and driveably connectable to said power head.

11. A power tool as described in claim 2 wherein said tool means includes a belt sander table clampably mountable on said tube member, said belt sander table including a belt sander pulley driveably connectable to said power head.

12. A power tool as described in claim 2 wherein said tool means includes a drill chuck mounted in said power head, a drill press table clampably mountable on said tube member,and said tube member is lockably positioned in a vertical position.

13. A power tool as described in claim 2 wherein said power head is counterbalanced by a vise member adjacent said second end of said tube member.

References Cited UNITED STATES PATENTS 2,226,029 12/1940 Taylor 144-1 2,517,608 8/1950 Taylor 1441 GERALD A. DOST, Primary Examiner US. Cl. X.R. 295 

